Preparing you for college, a career and life
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Best of both worlds - competitive academics + athletics
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Providing the best hands-on experience through best in state educators and field professionals
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Find your fit: Choose from 10 different careers, 22 programs of study, over 90 course offerings + the opportunity to graduate with one of 40 available certifications
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Follow your passions + join the ever-growing community of leaders and innovators
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Our Schools

Free Bus Transportation

Students come from three Rio Grande Valley Counties: 

Cameron, Hidalgo and Willacy

Area of 3,643 miles

Hidalgo Edinburg Mercedes Willacy Cameron San Benito Olmito
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510 S. Sugar Rd., Edinburg, TX 78539

(956) 383-1684

900 Med High Dr., Mercedes, TX 78570

(956) 565-4620

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151 S. Helen Moore Rd., San Benito, TX 78586

(956) 399-4358

724 S. Sugar Rd., Edinburg, TX 78539

(956) 381-5522

10650 North Expressway 77/83, Olmito, TX 78575

(956) 214-6100

700 Med High Dr., Mercedes, TX 78570

(956) 565-2237


Serving STISD's tri-county area | 956.514.4201

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Welcome to STISD's seventh and newest campus, an all-virtual learning option for RGV

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South Texas ISD at a Glance

best places to teach in Texas 

Best Teachers in Texas 

school district in Texas 

of STISD graduates attend college/university | 1%: Military 

Facts regarding today's lock down at Preparatory Academy

We thank you again for your patience today as we worked with law enforcement to address a situation we had at our Preparatory Academy campus and our Edinburg complex. We know there are rumors circulating on campus and outside of STISD regarding what happened, and we want to make sure our community is informed on the facts regarding the incident.

Read More about Facts regarding today's lock down at Preparatory Academy
Alert: Lockdown today, March 3 at Edinburg Schools

There was a suspicious incident at our Preparatory Academy campus just before 10 o’ clock a.m. today. Out of an abundance of caution, we immediately placed the school on lockdown and worked with our local law enforcement to ensure all students and staff were safe and secure. The lockdown has been lifted, and we are releasing students whose parents wish to pick them up early.

Read More about Alert: Lockdown today, March 3 at Edinburg Schools